Stewart habtshoef



(No Model.)

S, HARTSHORN.

SPRINGSHADB ROLLER. I lvm-293,457.' Patented Peb.. 12, 1884.

s Unir@ TATES STEWART HABTSHORN, OF MILLBURN, NEW JERSEY..

SPRING` SHADE-ROLLER.

i SPECIFICATION forming part of Letters Patent No. 293,457, datedFebruary 112, 1854. Application filed November S, 1883. (No model.)

.lo @Z wtont it may concern:

Be it known that I, STEWART HARrsnoRN, residing in Millburn, in theState of New Jersey, have invented an Improvement in Shade- Rollers, ofwhich the following is a full, clear, and eXact description, referencebeing had to the accompanying drawings, making a part of thisspecification.y

My invention relates to that class of shaderollers in which a springmounted upon aspindle or shaft imparts motion to the roller for thepurpose of winding up the shade, and has for its object an improved modeof connecting the springwith the roller, which is less expensive inconstruction and can be quickly effected.

In the drawings illustrating my improvement like letters indicate likeparts.

Figure l is a sectional view of a shade-roller, showing the springwithin the roller. Fig. 2 isaview of the complete spring, spindle,andend plate connected together and ready tobe inserted in theroller. Fig.Sis a sectional view of the outer end of the spindle, showing the modeof fastening the attened end of the spindle7 which ts in the bracket,tothe shaft or rod extending through the spring, and the method ofattaching the spindle to the end plate.

Fig. 4i is a detached view of the outer end of the rod or shaft, theouterl face-of the end plate, andthe flattened end of the spindle.

In spring shade-rollers the spring within the roller is coiled around aspindle or shaft, one end being attached to the spindle, which is xedand does not revolve, and the other fastened'to some part of the roller.In all methods of construction heretofore employed either the spring orits spindle, "at their inner end, has been connected in some waydirectly with the roller. Generally the inner end of the spindle orshaft is supportedl centrally within the boredout recess or cavity by abearing, this bearing being sometimes fixed and sometimes capable ofhorizontal move-l ment, so that the roller can freely revolve around thespindle when the shade is pulled down or wound up. 'When no such bearingis provided for the inner end of the shaft, the spring is attached insome way by its inner 5o end to the interior-of the cavityof the roller.

In such method of construction more or less difficulty-is experienced ineffecting theinner connection of the spindle or the spring,'

either in securing the bearing at the proper Vplace within the cavity,to accommodate the length of the spindle,so as toA allow the roller toturn freely, or in fastening the inner end of the spring to the interiorof the roller.

My improvement is intended to do awayk with all the difficulty offastening the inner end ofthe spring to the roller, or of providingabearing for the inner end 'of the spindle or shaft; and it consists inso arranging the spring and spindle within the roller that there willbeV no connection of the inner end of the spring or of the spindle withthe roller, thus doing away with the inner bearing of the spindle, andthe necessity of connecting the l spring with the rollerdn the cavitythereof, the spindle and spring being supported by the walls of thecavity.

In my improvement the inner end of the spring is attached to the spindlein. any suitable manner, and the outer end to the roller, or morepreferably to the end plate or head end, which is fastened to the end ofthe roller.

-The spindle having the spring mounted thereon is inserted within theroller so that the spring rests upon the walls of the hollow cavity, andis then secured at its outer end to the roller by any of the ordinarymethods now in use, as illustrated in the drawings, which show thespindle R secured at its outer end to the end plate, P, and the spring Sfastened at its inner end to the spindle and at its outer end to theplate P, and resting on the walls of the roller.

It will be noticed that the spindle is connected to the roller only atits outer end, where itis held by the plate l?, or otherwise theresecured, and its inner end is free from all contact with the interior ofthe roller, the spindlebeing prevented from dropping farther into theVcavity by the tension of the spring, and that the spring itself restsupon and is supported by the walls of the cavity, which is just largeenough to allow the roller to revolve around the spring without bindingit.

The spindle at its outer end may be connected with the roller in anysufficient manner; but I prefer to use the mode shown in Figs. 3 and 4.

The flattened end of the spindle A, which ICO the spindle or shaft R,instead of being driven in, as is commonlydone. rIhis end A is providedwith a shoulder, c, Aand the screw being put through the hole in theplate I?, so the l shoulder ca rests against the outer face of the platel?, the shaft R and end A are screwed 'together until. the end of theshaft comes v against the inner face of the plate P. rIhe two parts ofthe spindle are thus firmly attached together, and the spindle issecurely held in its place in the cavity of the roller, independentlyofthe tension of the spring, being prevented by the shoulder a on oneside of the plate I and the end of the shaft It on the other, fromsliding into or out of the roller.` This plate and the spindle andspring, all connected together, are thus capable of being :removed from'the roller at pleasure by merely detaching the y plate from the roller,and are attached to the in my improved rollerall connection of theroller merely by inserting the spindle and spring into the cavity of theroller and fastening the plate to the end ofthe roller. As the outeriiattened end of the spindle is [screw-ed into the shaft, there is less`liability of splitting the latter than-if it Were driven in, and theyshaft can be smaller, which will alllow a smaller cavity in the roller.It will thus be seen'that spring or thespindle with the cavity oftheroller is dispensed with, and all difficulty of securing the bearingWithin the roller is avoided;

and as the cavity needl only be large enough to allow the roller torevolve freely around .the spring, the Walls of the roller can be -muchthicker, thus not only making the rolle-r stronger, but allowing longertacks to be used for securing Athe shade to the roller without danger ofhaving themproject i-nto the cavity, so as to interfere with thespring.; and it is not necessary, in boring out the cavity of theroller, to have any regard -to the length of the spring or spindle, asthe cavity may be much longer than' the spindle Without interfering withthe action of the spring.

My improved method of arranging the spring 4 5 4of the shaft or spindleand spring around the same with the roller and the cavity therein,substantially as described, so that any support for the inner end of thespindle or any connection of the inner end of the spring with the rolleris dispensed with and rendered unnecessary. v

2. In spring shade-rollers, the spindle R, the end plate, I), and springS, connected together substantially as described, and combined With theroller so that the spring Will rest upon the Walls of the cavitythereof, as and for the purposes set forth.

3. In spring shade-rollers, the combination, with the roller, of thespindle R, attached thereto only at its outer end,the end plate,]?,andspring S, secured at its inner end to the spindle and at its outer endto the plate, and the flattened bracket end A, connected togethersubstantially as described, as and for the purposes set forth.

4. In spring shade-rollers, constructing the flattened or bracket end ofthe spindle with a shoulder and screw-tap, substantially as described,for attaching said spindle, the heador end plate of the roller, and thespring-.carrying shaft together, as and for the purposes set forth..

S'IEXVARI` HARTSIIORN.

Witnesses:

S. NELSON VHITE, SAMUEL LEA.

